Under Maryland State law, he could still be prosecuted for (attempted) rape and sent to jail if state officials would be willing to prosecute him, because there is no statue of limitations for (attempted) rape in Maryland. I already sent a letter to Brian Frosh asking him to launch a prosecution, and have been trying to get other people to do the same.
Kavanaugh is clearly guilty, and would be found guilty beyond a reasonable doubt if the case got to the courtroom.
That's a pretty bad take. I'm confident enough in his guilt to oppose his confirmation on that basis alone, but this is a decades old case with very little evidence. No reasonable jury would convict.